Sky Ferreira, an 18-year-old rising electro-pop star and Twitter frenemy of Katy Perry, stopped by the MTV studios recently to dish about her personal style. "Fashion is a very big thing in everyone's life," she told us. "I wouldn't say it defines you, but it helps express yourself." Even though the budding singer/songwriter hasn't officially released her debut album yet (it comes out early next year), she already made an impression in the fashion world by gracing the cover of Jalouse magazine in June, and it's rumored that Sky will star in Diesel's spring 2011 campaign. And she's proud of her style, despite some people nay-saying her unique look. "Of course, people criticize my style," she told us. "They'll be like, 'She looks skanky, she looks like she doesn't shower.' Or, 'Why is she wearing a giant flannel and ripped jeans on national TV?' It really depends." Find out more about Sky's favorite fashion trends (and faux pas!) in the clip below.